Dura-Gold 4" Abrasive Filament Nylon Bristle Cup Brush - 5/8" 11 Thread, 1/4" Hex Drill Shank Arbor, Coarse Grit Angle Grinder Brush for Truck Bed Liner Surface Prep, Sanding, Rust & Paint Removal

Excellent addition to the toolbox, cuts down like 320 grit and is perfect for scuffing up areas before primer. I would recommend still going over everything with 320 or a scotch pad before spraying primer. Cuts fast and works well, easy to connect to drill or angle grinder depending what you got. Good value here and seems durable!

Excellent item. Worked fantastic for what we needed to accomplish.

I bought two 6" brushes. The first one is holding up well after sanding a small truck bed.One star removed for the typical inadequate description. There is no RPM listed in the description. The pictures shows 6500RPM stamped in the brush. I have one angle grinder that runs that slow.Reality hit when I got the product. The wheel is stamped 2500RPM. Luckily I have a buffer with adjustable speed so I could actually use the wheel. I prefer not to use the buffer on sanding and grinding jobs. I would have purchased the 4" brush (assuming it is really rated 6500RPM) if the description had this information.

I love this product, and will be buying more. I beleive most of the problems people are experiencing all come from overspeeding the brush. It says right on the top of the cup MAX 6500 RPM. I have been running my 6" brush on a DeWalt stud drill on high speed. It cleans everything better than a pressure washer ever could, however it will scour any fine glossy finishes. I am most impressed with how it cleans old lumber. Makes it look fantastic and removes loose wood fibres like a rough sanding would do. Fantastic product with a multitude of uses. Absolutely will buy it again, and recommend it regularly.

It works great

Lots of videos showing this remove paint from truck bed. It does, kinda. It's fairly exhausting and when it gets how the bristles melt so then you have reddish marks to go back and remove. A sander would have been as fast and more effective for our application.

A must if you’re prepping a truck bed for a bed liner. So glad I purchased a cup brush. Lasted the entire job with very little wear.

This is a tool and does what it is supposed to when attached to a drill. Personally I have been looking for a version of this which has a tighter bristles. This attachment is made of a fair amount of bristles but fairly loose not right. The outer bristles will fray away if not careful. Worth the money.